The systolic blood pressure of 19-year-old women is normally distributed with a mean of 120 mmHg and a standard deviation of 13 mmHg. What percentage of 19-year-old women have a systolic blood pressure between 81 mmHg and 159 mmHg?

Q: A random sample of 40 adult males was taken, and their red blood cell counts were measured million…

A: a) From the given information, n=40x¯=4.932s=0.504 Null Hypothesis: H0:μ=5 Alternative Hypothesis:…

Q: The weight of oranges growing in an orchard is normally distributed with a mean weight of 8 oz. and…

A: Given that, μ=8 ozσ=1 Then, P7<x<9 Then, by the empirical rule solve as,…

Q: What is the maximum blood pressure reading of the lowest 70% of adult males?

A:

Q: The cruising altitudes for a Boeing 747 are normally distributed with a mean of 35,105 feet with a…

A: Solution

Q: The average 20- to 29-year-old man is 69.6 inches tall, with a standard deviation of 3.0 inches,…

A:

Q: According to the data from the National Health Survey, the height of all adult American women are…

A: The score is calculated below:

Q: The reading speed of sixth-grade students is approximately normal, with a mean speed of 125 words…

A: Mean = 125 Standard deviation = 24

Q: The amount of coffee dispensed by a coffee dispensing machine is normally distributed with mean of…

A: Solution-: Let, X= The amount of coffee dispensed by a coffee dispensing machine Given: We find,…

Q: . Calculate the standard deviation for

A: Here given grouped data for age and no. Of member

Q: The mean speed of a sample of vehicles along a stretch of highway is 67 miles per hour, with a…

A: From the provided information, Mean (µ) = 67 miles per hour Standard deviation (σ) = 2 miles per…

Q: The admission committee of AUCA passes 61% of those who took the exam. If the scores follow a normal…

A: We have given that.   X~N( μ , ?^2 )   μ =350 , ? =25   Z-score =( x - μ )/?

Q: Assume the speed of vehicles along an open stretch of a certain highway in Texas that is not heavily…

A: It is given that mean is 71 and standard deviation is 3.125.

Q: The weights of miniature horses are roughly normally distributed with a mean of 230 pounds and…

A: Given : The weights of miniature horses are roughly normally distributed with a mean of 230 pounds…

Q: The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally…

A: Givenmean(μ)=1252standard deviation(σ)=129

Q: The gestation period for human births can be taken as normally distributed with a mean of 256 days…

A: From the given information, the gestation period for human births can be taken as normally…

Q: A set of wrist watch prices are normally distributed with a mean of 76dollars and a standard…

A: From the provided information, Mean (µ) = 76 Standard deviation (σ) = 10 X~N (76, 10) Here X be a…

Q: The cruising altitudes for the fleet of one commercial airliner are normally distributed with a mean…

A: It is given that the mean is 34,950 and the standard deviation is 1,800.

Q: The lengths of the Atlantic croaker fish are normally distributed with a mean of 10 inches and a…

A:

Q: A particular leg bone for dinosaur fossils has a mean length of 5 feet with a standard deviation of…

A: Given, A particular leg bone for dinosaur fossils has a mean length of 5 feet with a standard…

Q: The length of time it takes a Grade 11 student to play the Candy Crush computer app follows a normal…

A: Given that  The length of time it takes a grade 11student to play the candy crush computer is…

Q: The systolic blood pressure of 18 year old woman is  a roughly bell shaped distribution with mean of…

A:

Q: The mean speed of a sample of vehicles along a stretch of highway is 64 miles per​ hour, with a…

A: Given, μ=64σ=4P(52<X<76)=?

Q: The average weight loss at a clinic is 10lbs with a standard deviation of 5lbs. What is the chance…

A:

Q: A bottler of drinking water fills plastic bottles with a mean volume of 998 milliliters (mL) and a…

A: Given:  µ = 998 mL  σ = 7 mL

Q: The mean height of Grade 11 students at a certain University is 150 cm and the standard deviation is…

A:

Q: An instructor in a large lecture class found, at the end of the semester, that the total point…

A: The provided information is:

Q: The waist girth of 2,500 employees in a large company follows the normal distribution with mean of…

A:

Q: The fuel efficiency of cars currently registered in the Commonwealth of Virginia is normally…

A: X follows a Normal distribution with mean = 24 and S.D = 6 Then z=(x-mean)/SD = (x-24)/6  follows…

Q: The mean height of trees in the virgin forest of Zambales is 42 feet and the standard deviation is 3…

A: The mean height of trees in the virgin forest of Zambales is 42 feet and the standard deviation is 3…

Q: The number of calories consumed per day for a child is normally distributed with a mean of 1544 and…

A: The number of calories consumed per day for a child is normally distributed with a mean of 1544 and…

Q: A line for tickets to a broadway show had a mean waiting time of 20 minutes with a statistic…

A: Given, Mean = μ = 20Standard deviation = σ = 4       To find, P (X > 28) = ?

Q: A study found that the mean migration distance of the green turtle was 2200 kilometers and the…

A:

Q: The admission committee of AUCA enrolls 60% of those who took the exam. If the scores follow a…

A:

Q: The weights of miniature horses are roughly normally distributed with a mean of 230 pounds and…

A:

Q: The heights of adult men in America are normally distributed, with a mean of 69.1 inches and a…

A: Heights of adult men is Normally Distributed with mean 69.1 inches and standard deviation 2.68…

Q: Describe  the scores in a sample  that has a standard  deviation of zero

A: If the standard deviation is zero there will be no dispersion of scores from the Mean. It means that…

Q: The mean length of six-year-old rainbow trout in the Arolik River in Alaska is 481 millimeters with…

A: Given data, μ=481σ=41P(X<501)=?

Q: Books in the library are found to have an average length of 350 pages with a standard deviation of…

A: Given that, Books in the library are found to have an average length of 350 pages with a standard…

Q: According to a recent report the battery life for a new line of laptop computers has a mean of 9…

A: The normal distribution:A continuous random variable X is said to follow normal distribution if the…

Q: The number of text messages that teenagers send per month is normally distributed with a mean of…

A: We have given that  X~N(mu,sigma ^2) mu=3400,sigma =450 and X=4415 Z-socre =(X-mu)/sigma

Q: The blood cholesterol levels of men aged 55 to 64 are approximately Normal with mean 222 mg/dl and…

A: To find the percent of the middle-aged (55-64) men with a high cholesterol level which is greater…

Q: The daily water usage per person in Davao City is normally distributed with a mean of 20 gallons and…

A: Empirical Rule : The empirical rule, also referred to as the three-sigma rule or 68-95-99.7 rule, is…

Q: The average 20-to 29-year-old man is 69.6 inches tall, with a standard deviation of 3.0 inches,…

A: Solution: Let X be the height of 20 to 29 year old man and Y be the height of the 20 to 29 year old…

Q: The height of adult men in the United States is normally distributed with a mean of 70 inches and a…

A: Let X denote the  height of adult men in the United States is normally distributed with a mean of…

Q: The heights of adult men in America are normally distributed, with a mean of 69.6 inches and a…

A: Z - score :  A Z-score is a numerical measurement that describes a value's relationship to the mean…

Q: The average score on the verbal portion of the college entrance exam is 453, with a standard…

A: From the provided information, Sample size (n) = 137 Sample mean (x̅) = 502 Population standard…

Q: If the average height of miniature poodles is 30 cm with a standard deviation of 4.1 cm, what…

A:

Q: If the weight of fertilizer in a 40-pound bag is normally distributed with a standard deviation of…

A: Define  the Random Variable, X : Weight of fertilizer in the bag. X ~ N(40,0.52) Hence , the mean, µ…

Q: The weights of baby tortoises are approximately normally distributed with a mean of 25.6 ounces and…

A:

Q: The daily water usage per person in Davao City is normally distributed with a mean of 20 gallons and…

A: Given that, Mean = 20 Standard deviation = 5

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.